package com.zhenxiang.juc.blockingqueue;

import java.sql.Time;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.TimeUnit;

/**
 * @Author : James
 * @Create : 2021-12-23-14:19
 * @Description :
 *
 *  同步队列
 *  和其他BlockingQueue 不一样，SynchronousQueue 不存储元素
 *  put了一个元素，必须先从里面take出来，否则不能再put进去。
 *
 *
 */
public class SynchronousQueueDemo {


    public static void main(String[] args) {

        SynchronousQueue synchronousQueue = new SynchronousQueue();
        new Thread(() -> {
            try {
                System.out.println(Thread.currentThread().getName() + "put 1");
                synchronousQueue.put("1");
                System.out.println(Thread.currentThread().getName() + "put 2");
                synchronousQueue.put("2");
                System.out.println(Thread.currentThread().getName() + "put 3");
                synchronousQueue.put("3");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }, "T1").start();

        new Thread(() -> {
            try {
                TimeUnit.SECONDS.sleep(3);
                System.out.println(Thread.currentThread().getName() + "=>" +synchronousQueue.take());
                TimeUnit.SECONDS.sleep(3);

                System.out.println(Thread.currentThread().getName() + "=>" +synchronousQueue.take());
                TimeUnit.SECONDS.sleep(3);

                System.out.println(Thread.currentThread().getName() + "=>" +synchronousQueue.take());
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }, "T2").start();

    }

}
